Bed.



No. 676,544. Patented June ls, 190|.

' F. MARTIN.

BED.

(Appliuion led July 16,l1900;) (No Model.)

A TTORNE Y0,

me nomma Pneus co. PMoroLnHo. Muslwmamn.y n. c.

Nrrnn STARS AfraNr BED.

SPECIFICATION formng part of Letters Patent No. 676,541.4, dated June Application filed July 16, 1900. Serial No. 23,829. (No model.)

.T0 all whom t may concern:

Beit known that l, FRANCIS MARTIN, a subject of the Queen of Great Britain, residing at No. 279 Chestnut street, in the city and county of San Francisco, in the State of California, have invented certain new and useful Improvements in Beds; and I do hereby declare the following to be a full, clear, and exact description of said invention, such as will enable others skilled in the art to which it most nearly appertains to make, use, and practice the same.

This invention relates to improvements in beds, particularly to the manner of swinging the mattress to the bedstead. In the drawings Figure l is a plan view from above of a bed constructed in accordance with this invention. 2 is a side elevation of the same. Fig. 3 is an end elevation of the Same.

The object which this invention has inview is, ,rst, to construct a bed in such a manner as to be resilient to the movement of a body reclining upon it; second, to so construct a mattress that it will maintain a level smooth appearance when not in use-that is to say, to obviate the unsightliness of a bed which has sagged in the middle after usage, and, third, to so construct a mattress that two persons may comfortably recline upon it without the inconvenience of being rolled together, due to the unusual strain on the springs of the bed.

The objects are accomplished by constructing a mattress having a rigid rectangular frame A, suspending horizontally therein the non-dexible member B, such as a heavy Wirenetting or the like, suspending this non-dexible member B by the spiral springs B', arranged upon its edge, and connecting same to the rectangular frame A and extending across the frame near the head or upper portion of the mattress where the greatest Strain comes are the auxiliary springs B2. The mattress constructed as above described is now Suspended within the bedstead, to the head and foot boards thereof, by the spiral springs A?, zigzagging from the corner of the frame A upward to the point A, downward therefrom to the point A2, upward again to the point A3, and to the opposite corner A4 of the mattress-frame Vdesired to protect the sleeper from uncomfort- A. Extending downward from the corners of the mattress and connecting same to the respective bed-legs below the level ofthe mattress are the spiral tiesprings A5. This construction of springs is duplicated at the other end of the mattress. This style of mattressmounting is particularly adapted to iron bedsteads, a ring being attached to the bedstead and mattress, respectively, at the points A A A2 A3 A4. It is evident from this construction that the Weight of a body sitting or reclining on the edge of the bed tends to depress the mattress evenly throughout its en tire bodythat is to say, the mattress sinks evenly under the weight of the person. The springs A5 prevent a too sudden recoil of the suspending-springs in the event of a person arising quickly or a sudden weight being thrown upon the mattress. It is also apparent from this construction that the mattress is in no Wise rigidly connected to the bedstead and is not subject to the vibrations thereof. This makes it particularly adaptable for hospital purposes or onboard ship, wherel it is Y able motions.

The noniiexible member B, flexibly suspended Within the frame A, prevents the mattress from sagging at one point when the strain is applied-that is to say, the Weight applied at one point on the member B is transmitted to the springsl B, connecting the member B to the frame A. This is particularly desirable where two persons are occupying the bed. The strain of each being transmitted evenly throughout the mattress pre-- vents the sag at one point causing an inclii nation to that point.

While the springs shown in the drawings are of the ordinary spiral type, without cas- 9o ing of any kind, it is evidentthat they may be inclosed within tubes after the fashion of a spring-balance scale. It has been amply demonstrated by practical tests that a bed constructed in accordance with this invention, with the arrangementof springs as shown, accomplishes every purpose desired.

Having thus described this invention, what is claimed is- In a bed or the like, a mattress-frame, a Ioo I plurality of spiral springs extending in a zigners of said frame with the bed proper; sub-v zag line between the ends of the said frame sta'ntiallyl as described. 1o and lche respeetve ends of the bed proper In testimony whereof I have hereunto set and supporting said frame from said bed, a my hand this 12th day of June, 1900.

non-elastic body portion Within said frame, FRANCIS MARTIN. spiral springs connecting the edges of said WVitnesses: body portion with said frame, and springs ex- J OHN HARRISON,

tending downwardly and connecting the oorj BALDWIN VALE. 

